| /* TMMHParameterSpec.java -- |
| Copyright (C) 2002, 2006 Free Software Foundation, Inc. |
| |
| This file is a part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or (at |
| your option) any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 |
| USA |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.javax.crypto.jce.spec; |
| |
| import gnu.java.security.prng.IRandom; |
| |
| import java.security.spec.AlgorithmParameterSpec; |
| |
| /** |
| * This class represents the algorithm parameters for the Truncated |
| * Multi-Modular Hash function for use with JCE-derived instances of |
| * {@link gnu.javax.crypto.mac.TMMH16}. |
| * <p> |
| * This class is little more than a container for the key stream, tag length, |
| * and prefix parameters for the TMMH algorithm. |
| */ |
| public class TMMHParameterSpec |
| implements AlgorithmParameterSpec |
| { |
| /** The keystream. */ |
| protected IRandom keystream; |
| /** The tag length. */ |
| protected Integer tagLength; |
| /** The prefix. */ |
| protected byte[] prefix; |
| |
| /** |
| * Create a new parameter specification. |
| * |
| * @param keystream The (PRNG) key stream. |
| * @param tagLength The tag length. |
| * @param prefix The prefix. |
| */ |
| public TMMHParameterSpec(IRandom keystream, Integer tagLength, byte[] prefix) |
| { |
| this.keystream = keystream; |
| this.tagLength = tagLength; |
| this.prefix = prefix; |
| } |
| |
| /** |
| * Create a new parameter specification with no prefix. |
| * |
| * @param keystream The (PRNG) key stream. |
| * @param tagLength The tag length. |
| */ |
| public TMMHParameterSpec(IRandom keystream, Integer tagLength) |
| { |
| this(keystream, tagLength, null); |
| } |
| |
| /** |
| * Return the key stream this specification was initialized with. |
| * |
| * @return The key stream. |
| */ |
| public IRandom getKeystream() |
| { |
| return keystream; |
| } |
| |
| /** |
| * Return the tag length this specification was initialized with. |
| * |
| * @return The tag length. |
| */ |
| public Integer getTagLength() |
| { |
| return tagLength; |
| } |
| |
| /** |
| * Return the prefix, or <code>null</code> if no prefix was specified. |
| * |
| * @return The prefix. |
| */ |
| public byte[] getPrefix() |
| { |
| return prefix; |
| } |
| } |